Collet chuck for pipe expander



FIG. 1 is a perspective view of a collet chuck, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a view showing the use of the collet chuck with a metal pipe.

The broken lines in the drawings depict unclaimed environmental subject matter. 

CLAIM The ornamental design for a collet chuck for pipe expander, as shown and described. 